Monroe County, Illinois — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
In Monroe County, Illinois, public U.S. EPA records track 171 regulated facilities (#75 of 193 in Illinois), including 2 (1.2%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 7 Safe Drinking Water (SDWIS) facilities, 53 Clean Water NPDES permits, 1 FEMA Federal Disaster Declarations (1 flood/storm), USDA Soil Foundation Shrink-Swell (HIGH signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Monroe County, IL 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Monroe County, IL Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)Municipalities in Monroe County
ZIP Codes in Monroe County
Top EPA Regulated Facilities in Monroe County, IL
100% of High-Risk & penalized facilities have facility names, street names, and dockets redacted (3 Low-Risk compliant records shown as Free Previews).
| Facility Name / Hazard Type | Sector Location (Street Redacted) | Risk Tier & Score | Compliance Status | Enforcement / Unlock |
|---|---|---|---|---|
| 🔒 Locked High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • WATERLOO, IL (ZIP 62298 Sector) | HIGH (65/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • VALMEYER, IL (ZIP 62295 Sector) | HIGH (64/100) | Significant Violation (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • WATERLOO, IL (ZIP 62298 Sector) | MODERATE (41/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • MAEYSTOWN, IL (ZIP 62256 Sector) | MODERATE (39/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • COLUMBIA, IL (ZIP 62236 Sector) | MODERATE (39/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • WATERLOO, IL (ZIP 62298 Sector) | MODERATE (37/100) | Violation Identified (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • WATERLOO, IL (ZIP 62298 Sector) | MODERATE (36/100) | Violation Identified (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • , IL (ZIP Sector) | MODERATE (36/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| MONROE COUNTY FREE PREVIEW (LOW RISK) | 100 S MAIN, WATERLOO, IL 62298 | LOW (25/100) | No Violation Identified (0 qtrs NC) | $0 |
| LINNEMANN OIL CO FREE PREVIEW (LOW RISK) | 1025 N MAIN, COLUMBIA, IL 62236 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| SKAER AUTO BODY & RUST REPAIR FREE PREVIEW (LOW RISK) | 101 CASS ST, WATERLOO, IL 62298 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| PHILIP ENVIRONMENTAL SERVICES CORP. FREE PREVIEW (LOW RISK) | 510 DD RD., COLUMBIA, IL 62236 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Monroe County, Illinois Environmental Due Diligence
How many EPA-regulated environmental sites are in Monroe County, Illinois?
Public U.S. EPA records track 171 regulated facilities in Monroe County, Illinois (ranking #75 of 193 jurisdictions in IL). Of those, 2 (1.2%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 12 (7.0%) have active non-compliance quarters.
Which ZIP codes and cities in Monroe County have the highest regulated facility density?
Within Monroe County, the highest concentrations of EPA-tracked facilities are located in ZIP 62295 (Valmeyer, 21 sites), ZIP 62248 (Hecker, 7 sites), ZIP 62256 (Maeystown, 5 sites), spanning municipal corridors including Valmeyer (23 sites), Hecker (8 sites), Maeystown (4 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Monroe County?
Across Monroe County, 77 facilities (45.0% of regulated sites) are registered Resource Conservation and Recovery Act (RCRA) hazardous waste generators or handlers, and 0 industrial sites report toxic chemical releases to the EPA Toxics Release Inventory (TRI).
What is the EPA Radon Zone classification for Monroe County, IL?
Geologic indoor air screening places Monroe County in EPA Zone 1 — High Potential (> 4.0 pCi/L). Counties in EPA Radon Zone 1 have a predicted average indoor radon screening level greater than 4.0 pCi/L (the EPA action threshold). Short-term or continuous indoor radon testing is strongly recommended prior to closing.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in Monroe County, IL?
Federal records track 7 Safe Drinking Water (SDWIS) facilities, 53 Clean Water Act NPDES permits, and 1 impaired water dischargers in Monroe County, alongside 1 historical FEMA federal disaster declarations (1 flood/storm events).
Does Monroe County, IL have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Monroe County indicates a HIGH shrink-swell risk signal and steel pipe corrosivity rated High. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.